I was thinking it might be good to post our discussion here on the website. I don't know if there is software to do it, does anyone know what the generic name of such software might be called?<br><br>Thanks<br><br>Kieran<br>
<br><div class="gmail_quote">On 12 November 2011 19:11, Kieran Wyse <span dir="ltr"><<a href="mailto:kieranwyse@gmail.com">kieranwyse@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>If no one has them lying around I picked up form b & Q, they seem to be the cheapest.<br><br><br><a href="http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9283910&fh_location=//catalog01/en_GB/categories%3C%7B9372015%7D/categories%3C%7B9372044%7D/categories%3C%7B9372215%7D/specificationsProductType=threaded_rods" target="_blank">http://www.diy.com/diy/jsp/bq/nav.jsp?action=detail&fh_secondid=9283910&fh_location=//catalog01/en_GB/categories%3C{9372015}/categories%3C{9372044}/categories%3C{9372215}/specificationsProductType=threaded_rods</a> (I take it these are M8)<br>
<br><br>If anyone has something to cut them with that would be great. I am not sure the cca would approve of me using an angle grinder. Otherwise they will have to wait to be cut at the next meeting.<br><font color="#888888"><br>
Kieran</font><div><div></div><div class="h5"><br><br>
<br><br><div class="gmail_quote">On 11 November 2011 21:12, Blair Thompson <span dir="ltr"><<a href="mailto:mail@justblair.co.uk" target="_blank">mail@justblair.co.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I will look forward to seeing what you get done.<br>
<br>
I have now completed a few of the smaller plastic parts. I was planning to<br>
tackle the vertexes next (that is if no one has started them yet?). One<br>
because they are less complex parts (and I am still honing my printing<br>
skills) and two because it would mean that we were only the 8mm rods away<br>
from getting something started build wise.<br>
<br>
<a href="http://goshg.org.uk/index.php/reprap" target="_blank">http://goshg.org.uk/index.php/reprap</a> you can see on the link that we have<br>
gathered quite a few of the components and others are on order.<br>
<br>
I know in the meeting a few people mentioned they may have threaded rod.<br>
Can everyone have a look and see if the can update the BOM with what they<br>
have?<br>
<div><br>
Blair<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a><br>
</div>[mailto:<a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a>] On Behalf Of Thomas Parry<br>
Sent: 10 November 2011 16:27<br>
<div><div></div><div>To: Discussion list for the Electron Club<br>
Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
<br>
Ramps does have a natural advantage that one of us is familiar with it and<br>
it seems like a well respected choice so I'll just go ahead with them.<br>
<br>
The more surface mount components the better from my perspective as it make<br>
the board production easier, less holes to drill, and the components are<br>
usually cheaper.<br>
<br>
I will keep you guys updated with my progress and will hopefully have<br>
something to bring to the meeting next week.<br>
<br>
Tom<br>
<br>
On Wed, Nov 9, 2011 at 10:36 PM, Blair Thompson <<a href="mailto:mail@justblair.co.uk" target="_blank">mail@justblair.co.uk</a>>wrote:<br>
<br>
> Hi Tom<br>
><br>
> I can't say that I am totally a ramps fanboy. I favour it for a<br>
> couple of reasons though...<br>
><br>
> 1. I know it (yep that is the main reason) 2. SD support 3. Good<br>
> support from the firmware point of view. (ie Marlin, Sprinter,<br>
> etc.)<br>
><br>
> There are others though and some may be easier to manufacture.<br>
> Sanguinololu<br>
> I believe can be made to operate from SD. I would have to check to<br>
> see what firmwares it can support.<br>
><br>
> As for ramps 1.4 If you enjoy working on surface mount stuff this is<br>
> one route to go. Ramps 1.3 is through hole and has as far as I can<br>
> tell all the relevant features...<br>
><br>
><br>
> -----Original Message-----<br>
> From: <a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a><br>
> [mailto:<a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a>] On Behalf Of Thomas Parry<br>
> Sent: 09 November 2011 20:26<br>
> To: Discussion list for the Electron Club<br>
> Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
><br>
> Looking at the options for the electronics, I'm not really sure what<br>
> path to go down. Blair, I know you're a fan of the RAMPS boards, what<br>
> about if I make a RAMPS 1.4 board? What are peoples opinions on the<br>
> best board for me to go ahead and make?<br>
><br>
> Tom<br>
><br>
> On Tue, Nov 8, 2011 at 10:48 PM, Blair Thompson <<a href="mailto:mail@justblair.co.uk" target="_blank">mail@justblair.co.uk</a><br>
> >wrote:<br>
><br>
> > As I said in my ps. I have just received a bundle of nuts and<br>
> > bolts, which should cover the needs in that department. I have<br>
> > marked them as on order on the RepRap page at goshg. I should<br>
> > change that to yes when I get a chance.<br>
> ><br>
> > I have also been working on some ABS prints for the printer as well.<br>
> > I am still refining the hole sizes for the bar clamps. What I have<br>
> > made so far is probably useable, but I would be happier if I can get<br>
> > the tolerances down a little before attempting more critical prints.<br>
> ><br>
> > I have been using parts from Greg Frost's repository for this as he<br>
> > has a more robust looking Y bracket. I will probably use one of the<br>
> > close but no cigar prints to upgrade my own printer.<br>
> ><br>
> > As for changing nozzles on the fly? The hot end is bolted into the<br>
> > extruder (if using a Wades which is the current fashion) with two<br>
> > 3mm bolts.<br>
> > Changing the nozzles over is probably going to damage the hot end if<br>
> > done frequently, but changing hot ends is certainly possible if<br>
> > fiddly. If it were me I would be tempted to carry two<br>
> > extruder/x-carriage/extruder motor/hot-end combos for an easy swap<br>
> > over. Use a durable connector to make the electronics easy to swap<br>
> > and Bob is indeed your mammies sister's ball and chain.<br>
> ><br>
> > For what we are hoping to do, sticking with the standard sizes would<br>
> > make calibration that bit easier especially if we use the<br>
> > Pronterface/Sfact/marlin firmware options. You can get pretty good<br>
> prints<br>
> > after a pretty simple calibration routine. It's only when you are<br>
> trying<br>
> > to make mechanical parts that you need more precision.<br>
> ><br>
> > Blair<br>
> ><br>
> > -----Original Message-----<br>
> > From: <a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a><br>
> > [mailto:<a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a>] On Behalf Of Kieran Wyse<br>
> > Sent: 08 November 2011 22:29<br>
> > To: Discussion list for the Electron Club<br>
> > Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
> ><br>
> > Once the reprap is built we can certainly thing about enclosing it,<br>
> > it may well improve build quality. As to the fidelity it does seem<br>
> > just from visual inspection of the parts printed that the limiting<br>
> > factor seems to be the size of the nozzle. Which begs the question<br>
> > is there are any way to change the nozzle size on the fly? If it<br>
> > were possible and I do not know how I think it would likely turn the<br>
> > reprap into a VERY capable machine.<br>
> ><br>
> > I have been told that the motors are going to take another 11 days<br>
> > to arrive. They should be here by the end of the month i reckon. Has<br>
> > anyone else had more progress than myself?<br>
> ><br>
> > Kieran.<br>
> ><br>
> > On 8 November 2011 21:56, Blair Thompson <<a href="mailto:mail@justblair.co.uk" target="_blank">mail@justblair.co.uk</a>> wrote:<br>
> ><br>
> > > I have seen other reprap experimenters talking about using enclosures.<br>
> > > I for the life of me cant remember whom. What I do seem to recall<br>
> > > was that they were using the heated bed as the main heating source<br>
> > > for the enclosure and then using a temperature controlled fan to<br>
> > > maintain the ambient temperature inside the case. I seem to<br>
> > > remember a temperature of around 40c as being in the ballpark as<br>
> > > to<br>
> what<br>
> was useful.<br>
> > ><br>
> > > If I remember quickly, what the experimenters were trying to<br>
> > > achieve was reduction of distortion in taller models. Warping<br>
> > > occurs sometimes when parts of the model at the base cool while<br>
> > > those at the top i.e. the most recently printed are stil hot. An<br>
> > > enclosure serves to reduce the difference in temperature from the<br>
> > > most recently printed parts of the model to the least recently<br>
printed.<br>
> > ><br>
> > > I have been trying to perfect my machine and have found that fan<br>
> > > cooling of the filament as it is laid down makes a difference to<br>
> > > the quality of the prints in either ABS and PLA. For ABS however<br>
> > > I also have to lay a skirt which reduces the cooling at the bottom<br>
> > > of the model from either my cooling fan or from the movement of the Y<br>
axis.<br>
> > > I was getting lifts from the build plate before I started using<br>
> > > the skirt. I don't know if this will improve PLA prints as I have<br>
> > > not tried it yet, Imanaged to get good prints without it.<br>
> > ><br>
> > > The layer thickness you reference for the Reprap of 0.3mm depends<br>
> > > on the extrusion nozzle aperture width. With a 0.5mm width and<br>
> > > 3mm filament the layer thickness works out at about 0.4mm using<br>
> > > the sfact software as a slicer. You can get lower by using<br>
> > > different filament thickness and different nozzle aperture widths.<br>
> > > What you gain in fidelity you lose in build speeds though.<br>
> > ><br>
> > > One idea I had was to not build the reprap using triangular<br>
> > > vertexes, but rather to build an MDF cube but use the Prusa<br>
> > > dimensions and mechanical parts. This would certainly allow<br>
> > > experimentation in terms of retaining some ambient heat around the<br>
> models being created.<br>
> > ><br>
> > > Regards<br>
> > ><br>
> > > Blair.<br>
> > ><br>
> > > Ps I just got a delivery of various screws and bolts that I needed.<br>
> > > I of course ordered a few extras. All but the M8 washers arrived<br>
> today.<br>
> > ><br>
> > ><br>
> > ><br>
> > > -----Original Message-----<br>
> > > From: <a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a><br>
> > > [mailto:<a href="mailto:members-bounces@electronclub.org" target="_blank">members-bounces@electronclub.org</a>] On Behalf Of Brian<br>
> > > Loudon<br>
> > > Sent: 08 November 2011 21:29<br>
> > > To: Discussion list for the Electron Club<br>
> > > Subject: Re: [ELECTRON] Proposed new club + Arduino meet up<br>
> > ><br>
> > > Hi to those interested in RepRaps, I came across this patent<br>
> > > relating to temperature and flow control for professional Fused<br>
> > > Deposition Modelling systems ;<br>
> > ><br>
> > ><br>
> > > <a href="http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT5866058&id=OgUX" target="_blank">http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT5866058&id=OgUX</a><br>
> > > AA<br>
> > > AA<br>
> > > EBAJ&o<br>
> > ><br>
> > > i=fnd&dq=stratasys+patent+fused+deposition+modelling&printsec=abst<br>
> > > ra<br>
> > > ct<br>
> > > #v=one<br>
> > > page&q&f=false<<a href="http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT" target="_blank">http://www.google.co.uk/patents?hl=en&lr=&vid=USPAT</a><br>
> > > 58<br>
> > > 66<br>
> > > 058&id=OgUXAAAAEBAJ&o%0Ai=fnd&dq=stratasys+patent+fused+deposition<br>
</div></div>> > > +m od elling&printsec=abstract#v=one%0Apage&q&f=false><br>
<div><div></div><div>> > ><br>
> > > The stratasys Dimension printers achieve .178 mm, .254 mm or .33<br>
> > > mm layer thicknesses,<br>
> > ><br>
> > > <a href="http://www.dimensionprinting.com/3d-printers/3d-printing-compariso" target="_blank">http://www.dimensionprinting.com/3d-printers/3d-printing-compariso</a><br>
> > > n_<br>
> > > ch<br>
> > > <a href="http://art.as" target="_blank">art.as</a><br>
> > > px<br>
> > ><br>
> > > the reprap is quoted as a layer thickness of 0.3<br>
> > > <a href="http://reprap.org/wiki/Mendel" target="_blank">http://reprap.org/wiki/Mendel</a><br>
> > ><br>
> > > The patent above emphasises the importance of temperature and the<br>
> > > professional machines all have enclosures, makes me wonder if the<br>
> > > reprap performance can be optimized?<br>
> > ><br>
> > > cheers<br>
> > ><br>
> > > Brian<br>
> > ><br>
> > ><br>
> > ><br>
> > > _______________________________________________<br>
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</div></div></blockquote></div><br>